University of Limerick
Li_2016_Particulate.pdf (882.58 kB)

Particulate matter and hospital admissions for stroke in Beijing, China: modification effects by ambient temperature

Download (882.58 kB)
journal contribution
posted on 2018-01-08, 12:32 authored by Fangfang Huang, Yanxia Luo, Yuming Guo, Lixin Tao, Qin Xu, Chao Wang, Anxin Wang, Xia Li, Jin Guo, Aoshuang Yan, Xiuhua Guo
Background-—The impact of particulate matter (PM) on stroke may vary by particle size, stroke subtype, and patient characteristics and temperature. We examined the association of stroke admissions with PM in different subgroups in Beijing, China, during 2013–2014. Methods and Results-—A time-stratified case-crossover design was used to assess the relation between PM of different particle sizes and hospital admissions for ischemic and hemorrhagic stroke. Stratified analyses were performed by age, sex, and temperature. In total, there were 147 624 stroke admissions during the study period. In the whole-period analysis, both PM2.5 and PM10 were positively associated with ischemic stroke admissions on the day of hospital admission and negatively associated with ischemic stroke at lag2 and lag3 day. In warm days (>13.5°C), the odds ratios of ischemic stroke admissions were 2.071 (95% CI 1.959–2.190), 1.470 (95% CI 1.391–1.554), and 1.590 (95% CI 1.493–1.694) per IQR increase in the same-day PM2.5 (82.0 lg/ m3), PM2.5–10 (36.6 lg/m3), and PM10 (93.5 lg/m3), respectively. For hemorrhagic stroke, the corresponding values were 1.941 (95% CI 1.658–2.273), 1.590 (95% CI 1.366–1.851), and 1.527 (95% CI 1.278–1.826). The positive associations were also observed in the other lag structures and were higher than in cold days (≤13.5°C). Conclusions-—This study suggests that the associations of PM2.5, PM2.5–10, and PM10 with stroke admissions differed across levels of temperature. Short-term exposure to PM2.5, PM2.5–10, and PM10 was positively associated with hospital admissions for ischemic and hemorrhagic stroke on warm days (>13.5°C).


Unsaturated OFDM adaptive multimode optical fiber communication technology research

National Natural Science Foundation of China

Find out more...



Journal of the American Heart Association;5:e003437


Wiley Open Access



Other Funding information

Beijing Municipal Science & Technology Commission, Key Projects in the National Science & Technology Pillar Program in the Twelfth Five-year Plan Period of China, Program of Natural Science Fund of China, Career Development Fellowship of Australian National Health and Medical Research Council



Usage metrics

    University of Limerick


    No categories selected


    Ref. manager